% MAKESECTIONS: demo the use of the section tools
%
%
% NOTE: This SOFTWARE may be used by any individual or corporation for any purpose
% with the exception of re-selling or re-distributing the SOFTWARE.
% By using this software, you are agreeing to the terms detailed in this software's
% Matlab source file.

% BEGIN TERMS OF USE LICENSE
%
% This SOFTWARE is maintained by the CREWES Project at the Department
% of Geology and Geophysics of the University of Calgary, Calgary,
% Alberta, Canada.  The copyright and ownership is jointly held by
% its 'AUTHOR' (identified above) and the CREWES Project.  The CREWES
% project may be contacted via email at:  crewesinfo@crewes.org
%
% The term 'SOFTWARE' refers to the Matlab source code, translations to
% any other computer language, or object code
%
% Terms of use of this SOFTWARE
%
% 1) This SOFTWARE may be used by any individual or corporation for any purpose
%    with the exception of re-selling or re-distributing the SOFTWARE.
%
% 2) The AUTHOR and CREWES must be acknowledged in any resulting publications or
%    presentations
%
% 3) This SOFTWARE is provided "as is" with no warranty of any kind
%    either expressed or implied. CREWES makes no warranties or representation
%    as to its accuracy, completeness, or fitness for any purpose. CREWES
%    is under no obligation to provide support of any kind for this SOFTWARE.
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% END TERMS OF USE LICENSE

% Just run the script

dt=.004;dx=10;tmax=2;xmax=2500;v=3000;
[w,tw]=ricker(.004,40);
tic
[amat,t,x]=makestdsyn(dt,dx,tmax,xmax,v,w,tw);
toc
tic
[amath,t,x]=makestdsynh(dt,dx,tmax,xmax,v,w,tw);
toc
plotimage(amat,t,x);
title('Made without diffractions')
[fk,f,k]=fktran(amat,t,x);
plotimage(abs(fk),f,k);
xlabel('wavenumber');ylabel('Hertz')
title('FK spectrum without diffractions')

plotimage(amath,t,x);
title('Made with diffractions')
[fkh,f,k]=fktran(amath,t,x);
plotimage(abs(fkh),f,k);
xlabel('wavenumber');ylabel('Hertz')
title('FK spectrum with diffractions')

%velocity model for raytracing
zmax=v*max(t)/2;
z=0:dx:zmax;

vmodel=v*ones(length(z),length(x)); %build model
rayvelmod(vmodel,dx); % initialize for raytracing